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  Extensions
  
</th><td width="20%" align="right"> <a accesskey="n" href="mt_allocator_design.html">Next</a></td></tr></table><hr /></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a id="manual.ext.allocator.mt"></a>Chapter 19. The mt_allocator</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="section"><a href="mt_allocator.html#allocator.mt.intro">Intro</a></span></dt><dt><span class="section"><a href="mt_allocator_design.html">Design Issues</a></span></dt><dd><dl><dt><span class="section"><a href="mt_allocator_design.html#allocator.mt.overview">Overview</a></span></dt></dl></dd><dt><span class="section"><a href="mt_allocator_impl.html">Implementation</a></span></dt><dd><dl><dt><span class="section"><a href="mt_allocator_impl.html#allocator.mt.tune">Tunable Parameters</a></span></dt><dt><span class="section"><a href="mt_allocator_impl.html#allocator.mt.init">Initialization</a></span></dt><dt><span class="section"><a href="mt_allocator_impl.html#allocator.mt.deallocation">Deallocation Notes</a></span></dt></dl></dd><dt><span class="section"><a href="mt_allocator_ex_single.html">Single Thread Example</a></span></dt><dt><span class="section"><a href="mt_allocator_ex_multi.html">Multiple Thread Example</a></span></dt></dl></div><p>
</p><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="allocator.mt.intro"></a>Intro</h2></div></div></div><p>
  The mt allocator [hereinafter referred to simply as "the allocator"]
  is a fixed size (power of two) allocator that was initially
  developed specifically to suit the needs of multi-threaded
  applications [hereinafter referred to as an MT application]. Over
  time the allocator has evolved and been improved in many ways, in
  particular it now also does a good job in single-threaded
  applications [hereinafter referred to as an ST application]. (Note:
  In this document, when referring to single-threaded applications
  this also includes applications that are compiled with gcc without
  thread support enabled. This is accomplished using ifdef's on
  __GTHREADS). This allocator is tunable, very flexible, and capable
  of high-performance.
</p><p>
  The aim of this document is to describe - from an application point of
  view - the "inner workings" of the allocator.
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